Home / 65,964.12-98,966.34-20,982.84

Finding the Fourth Proportional to 65,964.12, 98,966.34 and 20,982.84

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Solution

The fourth proportional to 65,964.12, 98,966.34 and 20,982.84 is: 31,480.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,964.12 : 98,966.34 = 20,982.84 : x
  2. Step 2: Convert to fraction form
    65,964.12/98,966.34 = 20,982.84/x
  3. Step 3: Cross multiply
    65,964.12x = 98,966.34 × 20,982.84
  4. Step 4: Simplify right side
    65,964.12x = 2,076,594,877.61
  5. Step 5: Solve for x
    x = 2,076,594,877.61/65,964.12
  6. Step 6: Final answer
    x = 31,480.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.